XC6122A337MR-G

Supervisors Overview

The XC6122A337MR-G is a high-precision voltage monitor manufactured by Torex Semiconductor. It operates within a supply voltage range of 1 V to 6 V and features a fixed detection threshold of 3.7 V. The device utilizes an N-channel open-drain CMOS output configuration. Key electrical parameters include a typical operating current of 12 µA and a static current of 5 µA. It incorporates a built-in watchdog timer with a timeout period of 100 ms and a release delay time of 100 ms. The component is housed in a compact SOT-25-5 surface-mount package and supports an industrial operating temperature range from -40 °C to +85 °C.

Supervisors Feature Summary

• Integrates a watchdog function controllable via the EN/ENB pin, allowing independent operation of the voltage detector while disabling the watchdog.
• Features laser-trimmed internal detection voltages for high precision without requiring external adjustment components.
• Includes an internal delay circuit that generates release delay signals without necessitating external capacitors or resistors.
• Utilizes low-current CMOS process technology to minimize power consumption during continuous monitoring.

Supervisors Applications

• Microprocessor watchdog monitoring and reset circuits
• Memory battery backup circuits
• System power-on reset circuits
• Power failure detection systems

Supervisors Procurement Notes

Verify the specific suffix 'MR' confirms the SOT-25-5 packaging and tape-and-reel delivery format. Confirm the 'A' designation aligns with the required 3.7 V threshold voltage and 100 ms delay specifications. Ensure compatibility with the target PCB footprint and reflow soldering profiles for the specified surface-mount package.

Supervisors Selection Notes

Select this component when a fixed 3.7 V threshold is required for single-input voltage supervision. The integrated watchdog and delay functions reduce external component count compared to basic supervisors. Verify that the 12 µA operating current meets system power budgets. Ensure the open-drain output interface matches the logic levels of the connected microcontroller or reset line.

Supervisors Part Context

This part belongs to the XC6121/XC6122/XC6123/XC6124 series of high-precision voltage detectors. The XC6122 variant specifically provides a watchdog function with an internally pulled-up EN/ENB pin, simplifying integration. The series employs laser trimming technology to define detection voltages in 100 mV increments across a 1.6 V to 5.0 V range.

Supervisors Replacement Considerations

XC6122A337MR-G is a specific parameter variant. Cross-reference with other XC6122 suffixes (e.g., XC6122A337ER-G) only if package changes are acceptable. Generic replacements must match the 3.7 V threshold, 100 ms delay, and watchdog functionality.